Merge pull request #10219 from thejoeflow/BAEL-4635
[BAEL-4635] Tests for JPA Transient Annotation tutorial
This commit is contained in:
Jonathan Cook
GitHub
commit
75a4c2e95d
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@ -27,7 +27,21 @@
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<artifactId>h2</artifactId>
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<version>${h2.version}</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>8.0.21</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>2.11.3</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.datatype</groupId>
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<artifactId>jackson-datatype-hibernate5</artifactId>
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<version>2.9.8</version>
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</dependency>
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<!--Compile time JPA API -->
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<dependency>
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<groupId>javax.persistence</groupId>
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package com.baeldung.ignorable.fields;
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import java.util.Properties;
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import org.hibernate.SessionFactory;
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import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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import org.hibernate.cfg.Configuration;
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import org.hibernate.cfg.Environment;
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import org.hibernate.service.ServiceRegistry;
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public class HibernateConfig {
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private static SessionFactory sessionFactory;
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public static SessionFactory getSessionFactory() {
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if (sessionFactory == null) {
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Configuration configuration = new Configuration();
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Properties settings = new Properties();
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settings.put(Environment.DRIVER, "com.mysql.cj.jdbc.Driver");
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settings.put(Environment.URL, "jdbc:mysql://localhost:3306/app_db?useSSL=false");
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settings.put(Environment.USER, "root");
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settings.put(Environment.PASS, "password");
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settings.put(Environment.DIALECT, "org.hibernate.dialect.MySQL5Dialect");
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settings.put(Environment.CURRENT_SESSION_CONTEXT_CLASS, "thread");
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configuration.setProperties(settings);
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configuration.addAnnotatedClass(User.class);
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ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
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.applySettings(configuration.getProperties())
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.build();
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sessionFactory = configuration.buildSessionFactory(serviceRegistry);
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}
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return sessionFactory;
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}
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}
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@ -0,0 +1,80 @@
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package com.baeldung.ignorable.fields;
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import java.io.Serializable;
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import java.util.StringJoiner;
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import javax.persistence.*;
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@Entity
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@Table(name = "Users")
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public class User implements Serializable {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Integer id;
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private String email;
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private String password;
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@Transient
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private String currentDevice;
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// Needed for Hibernate mapping
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public User() {
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}
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public User(String email, String password, String currentDevice) {
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this.email = email;
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this.password = password;
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this.currentDevice = currentDevice;
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}
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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public String getPassword() {
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return password;
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}
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public void setPassword(String password) {
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this.password = password;
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}
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public String getCurrentDevice() {
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return currentDevice;
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}
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public void setCurrentDevice(String currentDevice) {
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this.currentDevice = currentDevice;
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}
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@Override
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public String toString() {
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return new StringJoiner(", ", User.class.getSimpleName() + "[", "]").add("id=" + id)
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.add("email='" + email + "'")
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.add("password='" + password + "'")
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.add("currentDevice='" + currentDevice + "'")
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.toString();
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}
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@Override
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public boolean equals(Object o) {
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if (this == o)
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return true;
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if (!(o instanceof User))
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return false;
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User user = (User) o;
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return email.equals(user.email);
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}
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}
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@ -0,0 +1,28 @@
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package com.baeldung.ignorable.fields;
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import java.util.List;
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import org.hibernate.Session;
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import org.hibernate.Transaction;
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public class UserDao {
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public void saveUser(User user) {
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Transaction transaction = null;
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try (Session session = HibernateConfig.getSessionFactory().openSession()) {
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transaction = session.beginTransaction();
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session.save(user);
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transaction.commit();
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} catch (Exception e) {
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if (transaction != null) {
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transaction.rollback();
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}
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}
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}
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public List<User> getUsers() {
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try (Session session = HibernateConfig.getSessionFactory().openSession()) {
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return session.createQuery("from User", User.class).list();
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}
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}
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}
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@ -0,0 +1,79 @@
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package com.baeldung.ignorable.fields;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNull;
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import java.io.*;
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import java.util.List;
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import java.util.Random;
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import org.junit.Test;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.MapperFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.datatype.hibernate5.Hibernate5Module;
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public class TransientFieldUnitTest {
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private final UserDao userDao = new UserDao();
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private final int randInt = new Random().nextInt();
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private final User user = new User("user" + randInt + "@bar.com", "hunter2", "MacOSX");
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@Test
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public void givenFieldWithTransientAnnotation_whenSavingViaJPA_thenFieldIgnored() {
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userDao.saveUser(user);
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List<User> allUsers = userDao.getUsers();
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User savedUser = allUsers.get(allUsers.indexOf(user));
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assertNull(savedUser.getCurrentDevice());
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}
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@Test
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public void givenFieldWithTransientAnnotation_whenSerializingObject_thenFieldSerialized() throws IOException, ClassNotFoundException {
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FileOutputStream fout = new FileOutputStream("test.obj");
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ObjectOutputStream out = new ObjectOutputStream(fout);
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out.writeObject(user);
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out.flush();
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out.close();
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FileInputStream fin = new FileInputStream("test.obj");
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ObjectInputStream in = new ObjectInputStream(fin);
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User savedUser = (User) in.readObject();
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in.close();
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assertEquals(user.getCurrentDevice(), savedUser.getCurrentDevice());
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}
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@Test
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public void givenFieldWithTransientAnnotation_whenSerializingToJSON_thenFieldSerialized() throws JsonProcessingException {
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ObjectMapper objectMapper = new ObjectMapper();
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String json = objectMapper.writeValueAsString(user);
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User savedUser = objectMapper.readValue(json, User.class);
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assertEquals(user.getCurrentDevice(), savedUser.getCurrentDevice());
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}
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@Test
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public void givenJacksonHibernate5Module_whenSerializingTransientAnnotation_thenFieldIgnored() throws JsonProcessingException {
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ObjectMapper objectMapper = new ObjectMapper();
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objectMapper.registerModule(new Hibernate5Module());
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String json = objectMapper.writeValueAsString(user);
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User savedUser = objectMapper.readValue(json, User.class);
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assertNull(savedUser.getCurrentDevice());
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}
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@Test
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public void givenPropagateTransientFieldFlag_whenSerializingTransientAnnotation_thenFieldSerialized() throws JsonProcessingException {
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ObjectMapper objectMapper = new ObjectMapper();
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objectMapper.configure(MapperFeature.PROPAGATE_TRANSIENT_MARKER, true);
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String json = objectMapper.writeValueAsString(user);
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User savedUser = objectMapper.readValue(json, User.class);
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assertEquals(user.getCurrentDevice(), savedUser.getCurrentDevice());
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}
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}
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